"Come on, I'll show you the Mithraeum and the Temple of Vulcan.".    From Wordnik.com.  [Time Scout]

Seeing all three of those in rapid succession, it was almost like seeing churches of three different religions -- the Temppeliaukio could have been a modern Mithraeum, with its solar window wheel around the taut spiral of copper in the ceiling, while the Uspensky cathedral would seem riotously polytheist to anyone unfamiliar with Byzantine iconography.    From Wordnik.com.  [Kenneth Hite's Journal] Reference

The third piece is a set of wall drawings from the Roman temple Mithraeum in the ancient city of Dura-Europos that date back to the second century A.D.    From Wordnik.com.  [Yale Daily News - Latest Issue] Reference